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wimax (802.16)
(1054 results)-
White Papers
Modeling and Generation of AVC and SVC-TS Mobile Video Traces for Broadband Access Networks
Feb 2010
The authors propose a simple model that is capable of capturing the statistical characteristics of mobile video traces encoded using MPEG4-Part2, AVC and SVC-TS encoding standards. The model can...
Provided by Association for Computing Machinery
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White Papers
Generalized Weighted Fairness and Its Application for Resource Allocation in IEEE 802.16e Mobile WiMAX1,2
Jan 2010
In wireless networks, the definition of fair resource allocation is ambiguous because the wireless channel condition is not constant over time and location. Two main ways to define fair resource...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
SWIM: A Scheduler for Unsolicited Grant Service (UGS) in IEEE 802.16e Mobile WiMAX Networks
Jan 2010
One of the key features of the IEEE 802.16e Mobile WiMAX is its strong Quality of Service (QoS). The IEEE 802.16e Mobile WiMAX provides the multiple QoS classes for voice, video, and data...
Provided by Washington University in St. Louis
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White Papers
OCSA: An Algorithm for Burst Mapping in IEEE 802.16e Mobile WiMAX Networks1,2
Oct 2009
Most of IEEE 802.16e resource allocation proposals only focus on how to allocate the resources to meet QoS parameters such as throughput, delay, and delay-jitter. As described in the standard, the...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
A Deficit Round Robin With Fragmentation Scheduler for IEEE 802.16e Mobile WiMAX1,2
Apr 2009
Deficit Round Robin (DRR) is a fair packet-based scheduling discipline commonly used in wired networks where link capacities do not change with time. In wireless networks especially wireless...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
SAM: A Simplified Seasonal ARIMA Model for Mobile Video Over Wireless Broadband Networks
Dec 2008
Wireless broadband technologies like WiMAX2 are spreading especially in areas where wired broadband is not expected to reach. Video streaming is continuously acquiring a larger share of Internet's...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Cooperative Multicast Scheduling With Random Network Coding in WiMAX
Apr 2009
The Multicast and Broadcast Service (MBS) in WiMAX has emerged as the next-generation wireless infrastructure to broadcast data or digital video. Multicast scheduling protocols play a critical...
Provided by University of Toronto
-
White Papers
Cooperative Resource Management in Cognitive WiMAX With Femto Cells
Dec 2009
WiMAX with femto cells is a cost-effective next-generation broadband wireless communication system. Cognitive Radio (CR) has recently emerged as a promising technology to improve spectrum...
Provided by University of Toronto
-
White Papers
Investigating the Performance of Various Vocoders for a Fair Scheduling Algorithm in WiMax
Nov 2009
IEEE 802.16e, a broadband wireless access technology that provides high speed internet access and multimedia services has seen very significant growth in recent times. With the due rapid...
Provided by University of Texas
-
White Papers
Security Enhancement & Solution for Authentication Frame Work in IEEE 802.16
Dec 2010
WIMAX- Worldwide Interoperability for Microwave Access is going to be an emerging wireless technology for the future. Wireless networking market is thriving because of increasing popularity of...
Provided by Chittagong University of Engineering & Technology
-
White Papers
WiMAX Based 60 GHz Millimeter-Wave Communication for Intelligent Transport System Applications
Apr 2011
With the successful worldwide deployment of 3rd generation mobile communication, security aspects are ensured partly. Researchers are now looking for 4G mobile for its deployment with high data...
Provided by Sikkim Manipal University
-
White Papers
Selfless Distributed Credit Based Scheduling for Improved QoS in IEEE 802.16 WBA Networks
Nov 2009
Packet and flow scheduling algorithms for WiMAX has been a topic of interest for a long time since the very inception of WiMAX networks. WiMAX offers advantages particularly in terms of Quality of...
Provided by Andhra University
-
White Papers
VOIP Performance Over Broadband Wireless Networks Under Static and Mobile Environments
Nov 2010
Voice over IP is expected to be very promising application in the next generation communication networks. The objective of this paper is to analyse the VoIP performance among the most competing...
Provided by Jadavpur University
-
White Papers
Queueing Analysis of Polled Service Classes in the IEEE 802.16 MAC Protocol
Sep 2009
This paper considers the performance of the polling based service classes of IEEE 802.16 based broadband wireless access networks and develops queueing models to evaluate their delay distributions...
Provided by Rensselaer Polytechnic Institute
-
White Papers
Performance Evaluation of Wimax Physical Layer Under Adaptive Modulation Techniques and Communication Channels
Oct 2009
WIMAX (Worldwide Interoperability for Microwave Access) is a promising technology which can offer high speed voice, video and data service up to the customer end. The aim of this paper is the...
Provided by University of Rajshahi
-
White Papers
A Comprehensive Analysis of Bandwidth Request Mechanisms in IEEE 802.16 Networks
May 2010
The IEEE 802.16 standard is considered to be one of the most promising technologies. Bandwidth reservation is employed to provide Quality of Service (QoS)-guaranteeing services. A request/grant...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Management of Multiple Mobility Protocols and Tools in Dynamically Configurable Networks
Mar 2008
Solutions for mobility management in wireless networks have been investigated and proposed in various research projects and standardization bodies. With the continuing deployment of different...
Provided by University of Surrey
-
White Papers
Comparative Study of Different Guard Time Intervals to Improve the BER Performance of Wimax Systems to Minimize the Effects of ISI and ICI Under Adaptive Modulation Techniques Over SUI-1 and AWGN Communication Channels
Dec 2009
The WIMAX technology based on air interface standard 802-16 wireless MAN is configured in the same way as a traditional cellular network with base stations using point to multipoint architecture...
Provided by University of Rajshahi
-
White Papers
A Coded Cooperative Networking MAC Protocol in Non Transparent Multihop WiMAX Network
May 2010
IEEE 802.16j Mobile Multi-hop Relay (MMR) was proposed to gain coverage extension and throughput enhancement. The objective of this paper, is to suggest a coded cooperative networking MAC protocol...
Provided by University of Sfax
-
White Papers
Performance Evaluation of WiMAX (802.16) Using Different Encoding Schemes
Dec 2009
WiMAX stands for Worldwide Interoperability for Microwave Access. WiMAX is based on wireless Metropolitan Area Network (MAN) standards developed by IEEE 802.16 group. It operates in the licensed...
Provided by COMSATS Institute of Information Technology
-
White Papers
Modified EESM Based Link Adaptation Algorithm for Multimedia Transmission in Multicarrier Systems
Jan 2010
The previous link adaptation algorithms on OFDM based systems use equal modulation order for all sub carrier index within a block. For multimedia transmission using OFDM as the modulation...
Provided by Pondicherry Engineering College
-
White Papers
Comparative Study of VoIP Over WiMax and WiFi
May 2011
Recently wireless technology has grown immensely in popularity and usage becoming a medium of choice for networks. The wireless communication revolution is bringing fundamental changes to data...
Provided by University of Karachi
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Case Studies
Packet One Networks Secures Leasing for IT Projects and Business Expansion
Feb 2011
Packet One Networks (Malaysia) Sdn Bhd ("P1") has become Malaysia's largest provider of 4G WiMAX service. To continue growing at such exponential rates, the company needed to improve the agility...
Provided by IBM
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White Papers
Modified Concentric Circular Microstrip Array Configurations for WIMAX Base Stations
Feb 2010
As the increasing demand for higher capacity, better coverage and higher transmission quality rises, array antennas are used in mobile communication systems. For WiMAX application different...
Provided by JATIT
-
White Papers
Target Localization Accuracy Using Wimax Radar Networks
May 2011
Scientists have explored that WiMAX has the potential to enhance the performance of the radar networks. With the idea of implementing MIMO (Multi-Input Multi-Output) communication technology for...
Provided by JATIT
-
White Papers
Streaming Scalable Video Over WiMAX Networks
Apr 2010
Broadcasting multiple scalable video streams over wireless broadband access networks in real time is a challenging problem, because of the limited channel capacity and variable bit rate of the...
Provided by Simon Fraser University
-
White Papers
Comparison Between Turbo Code and Convolutional Product Code (CPC) for Mobile WiMAX
Jun 2009
Mobile WiMAX is a broadband wireless solution that enables convergence of mobile and fixed broadband networks through a common wide area broadband radio access technology and flexible network...
Provided by World Academy of Science, Engineering and Technology
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White Papers
Estimated Traffic Congestion Length by Using Vehicle-to-Vehicle Communication Based on ZigBee
May 2008
The authors propose wireless cellular network that is a sensor network formulation way. In this paper, ZigBee is applied using frequency-division multiplex systems to estimate the distance traffic...
Provided by Shizuoka University
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White Papers
IP-Surveillance System for Unmanned Platforms of Offshore Oil & Gas Field Using WiMAX Technology
May 2008
The Offshore oil and gas fields generally consist of a process complex and group of unmanned platforms attached to it. The hydrocarbons produced at different unmanned platforms will be transported...
Provided by Andhra University
-
White Papers
Error Control Strategies for WiMAX Multi-Hop Relay Networks
Dec 2009
Next generation wireless system such as advanced WiMAX (i.e. IEEE802.16m) and LTE advanced will fully embrace multi-hop relay architecture. The conventional Automatic Repeat reQuest (ARQ) and the...
Provided by Mitsubishi Electric Research Laboratories
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White Papers
Fast Handover Between WiMAX and WiFi Networks in Vehicular Environment
Nov 2009
Fast handover is crucial to provide the best services to mobile users in vehicular environment. WiMAX and WiFi support mobility in vehicular speed. However, WiMAX and WiFi network entry processes...
Provided by Mitsubishi Electric Research Laboratories
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White Papers
Energy Efficient Scheduling for Cluster-Tree Wireless Sensor Networks With Timebounded Data Flows: Application to IEEE 802.15.4/ZigBee
May 2010
Cluster scheduling and collision avoidance are crucial issues in large-scale cluster-tree Wireless Sensor Networks (WSNs). The paper presents a methodology that provides a Time Division Cluster...
Provided by CISTER
-
White Papers
Simulation Study of Energy Efficient Scheduling for IEEE 802.15.4/ZigBee Cluster-Tree Wireless Sensor Networks With Time-Bounded Data Flows
Nov 2010
The simulation analysis is important approach to developing and evaluating the systems in terms of development time and cost. This paper demonstrates the application of Time Division Cluster...
Provided by CISTER
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White Papers
Measurement and Analysis of BitTorrent Traffic in Mobile WiMAX Networks
Jun 2010
As mobile Internet environments are becoming dominant, how to revamp P2P operations for mobile hosts is gaining more and more attention. In this paper, the authors carry out empirical traffic...
Provided by Seoul National University
-
White Papers
Leader-Based Multicast Service in IEEE 802.11v Networks
Feb 2010
With the advent of various multimedia streaming applications requiring reliability and high bandwidth, multicasting in wireless LANs has been gaining more attentions as the supported bit rate...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Measurement and Analysis of World of Warcraft in Mobile WiMAX Networks
May 2009
Online games have been played mainly over wired networks due to high speed links and capable desktop computers. The advances in mobile devices and ever increasing wireless link bandwidth motivate...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Proactive Transmission-Based QoS Provisioning for Multicast and Broadcast Services in Mobile WiMAX Systems
Sep 2009
Mobile WiMAX systems have gained much attention for high transmission rates in cellular environments. One of the promising applications that can leverage high bit rates is Multicast and Broadcast...
Provided by Association for Computing Machinery
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White Papers
Pricing for Heterogeneous Services in OFDMA 802.16 Systems
Nov 2008
The IEEE 802.16 standard is expected to become a successful broadband wireless access solution, especially thanks to its ability to provide high data rates, to differentiate services, and thanks...
Provided by Seoul National University
-
White Papers
Regional Token Based Routing for DTNs
Nov 2008
In Delay and Disruption Tolerant Networks (DTNs), there are no stable end-to-end paths because the connectivity of nodes is frequently disrupted by their mobility, power saving or other reasons....
Provided by Seoul National University
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White Papers
Location Management Area (LMA)-Based MBS Handover in Mobile WiMAX Systems
Sep 2007
Mobile WiMAX aims to provide multimedia Multicast/Broadcast Service (MBS) as well as elastic data service. However, supporting delay sensitive applications like video/audio streaming is still...
Provided by Seoul National University
-
Whitepapers
Bandwidth Allocation and Recovery for Uplink Access in IEEE 802.16 Broadband Wireless Networks
Aug 2007
IEEE 802.16 was created to meet the need of high-speed wireless access in metropolitan-scale areas. Due to air interference and dynamic queue state changes in subscriber stations, the idling...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Local Interference Coordination in Cellular OFDMA Networks
Aug 2007
Orthogonal Frequency Division Multiple Access (OFDMA) is a promising concept, which is the basis of the currently emerging 802.16e (WiMax) and 3GPP Long Term Evolution (LTE) cellular systems....
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Efficient ARQ Mechanism in Multi-Hop Relay Systems Based on IEEE 802.16 OFDMA
Aug 2007
A Mobile Multi-hop Relay (MMR) Task Group was created to achieve coverage extension and throughput enhancement by introducing a Relay Station (RS) in the IEEE 802.16 system. If the RS is...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Exploiting Spectral Reuse in Resource Allocation, Scheduling, and Routing for IEEE 802.16 Mesh Networks
Aug 2007
The IEEE 802.16 standard for Wireless Metropolitan Area Networks (WMAN) has been created to meet the need of wide-range broadband wireless access at low cost. The objective of this paper is to...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Cross-Layer Fast Handover Scheme for Mobile WiMAX
Aug 2007
The Mobile WiMAX standard (IEEE 802.16e-2005) brings wireless broadband to a new level due to the support of nomadism. Still, handover latency in Mobile WiMAX is an issue that may affect real-time...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
QoS Differentiation Adaptive Retransmission Limits ARQ for IEEE 802.16e BWA System
Aug 2007
In this paper, a QoS Differentiation Adaptive Retransmission Limits ARQ (QDARL-ARQ) is proposed to improve the efficiency of retransmission in conventional SR-ARQ for the IEEE 802.16e BWA systems....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Routing Protocol for Wireless Mesh Networks
Aug 2007
In this paper, the authors propose and develop a new simple routing protocol for wireless mesh network. This protocol, called Multipath Parallel Routing Protocol MPRP, is a reactive, distance...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Method for Non-Real-Time Polling Service in IEEE 802.16 Wireless Access Networks
Aug 2007
The authors propose a new polling method for non-real-time traffics for the uplink of the 802.16 WirelessMAN systems. Though the standard supports various polling services for uplink data...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Performance Evaluation of 802.16e in Vehicle to Vehicle Channels
Aug 2007
Vehicle-To-Vehicle (V2V) communications have drawn much attention in the past few years. The IEEE 802.16e standard systems can be considered potential candidates for these applications due to...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Fast-Convergence Decoding Method and Memory-Efficient VLSI Decoder Architecture for Irregular LDPC Codes in the IEEE 802.16e Standards
Aug 2007
In this paper, the authors propose a modified iterative decoding algorithm to decode a special class of Quasi-Cyclic Low-Density Parity-Check (QC-LDPC) codes such as QC-LDPC codes used in the IEEE...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Evaluation of IEEE 802.16e (Mobile WiMAX) in OFDM Physical Layer
Mar 2012
WiMAX is introduced by the Institute of Electrical and Electronic Engineers (IEEE) which is standard designated 802.16d-2004 (used in fixed wireless applications) and 802.16e-2005 (mobile...
Provided by International Journal of Engineering Research and Applications (IJERA)
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Whitepapers
Piggybacking Scheme of MAP IE for Minimizing MAC Overhead in the IEEE 802.16e OFDMA Systems
Aug 2007
This paper analyzes Media Access Control(MAC) overhead of the IEEE 802.16e systems and shows that it causes to degrade system performance critically. MAP, a control message about resource...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Variable-Length Burst Scheduling Algorithm (VLBS) for Downlink Traffic in IEEE 802.16m OFDMA Systems
Mar 2012
In IEEE 802.16m networks, each frame is divided into eight Advanced Air Interface (AAI) sub-frames, composed of Logical Resource Units (LRUs). According to stations' requirements, Advanced Base...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Optimal Rate Assignment for Higher Utility WiMAX Surveillance Systems
Mar 2012
In this paper, the authors address the problem of guaranteed transmission of video flows in the context of WiMAX mesh networks for video surveillance purposes. The main design issue in such...
Provided by Telecom of New Zealand
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Whitepapers
Performance Evaluation of TCP in IEEE 802.16 Networks
Mar 2012
An important application for the IEEE 802.16 technology (also called WiMAX) it to provide high-speed access to the Internet where the Transmission Control Protocol (TCP) is the core transport...
Provided by Democritus University of Thrace
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Whitepapers
Dimensionality Reduced Decoding for the Golden Code With the Worst-Case Complexity of O(m1.5) for Low Range of SNR
Mar 2012
The multiple antenna technique with space-time coding is efficient to communicate reliably on multipath wireless channel at high-data rates. The golden code is a well-known space-time code for two...
Provided by Istanbul Technical University
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Whitepapers
QoE Enhancement by Capacity Allocation and Piggyback Bandwidth Request in Audio-Video IP Transmission Over the IEEE 802.16 BE Service
Mar 2012
This paper studies QoE (Quality of Experience) enhancement of audio - video IP transmission over the uplink channel, i.e., from Subscriber Stations (SSs) to the Base Station (BS), in the IEEE...
Provided by Nagoya Institute of Technology
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Whitepapers
Protocol Design of a Slot Allocation Scheme for Persistence-Reservation-Based IEEE 802.16d Mesh Networks
May 2012
This paper proposes a MAC-layer timeslot allocation signaling protocol for IEEE 802.16d mesh networks. The proposed mechanism complements the three-way-handshake signaling described in the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Mobile WiMAX: Impact of Mobility on the Performance of Limited Feedback Linear Precoding
Mar 2010
The mobile WiMAX standard (802.16e) uses Multiple-Input Multiple-Output (MIMO) limited feedback linear precoding to exploit the channel state information at the transmitter. Although the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Condensed Downlink MAP Structures for IEEE 802.16e Wireless Metropolitan Area Networks (MANs)
Mar 2010
The new mobile Wireless Metropolitan Area Network (WMAN) architecture imposes a demanding performance requirement on the radio resource to provide broadband internet access. The radio resource is...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Inter-Domain Roaming Mechanism Transparent to IPv6-Node Among PMIPv6 Networks
Mar 2010
Proxy Mobile IPv6 (PMIPv6) is designed to provide mobility service to IPv6-nodes in a network domain by network based management which does not require the nodes to be involved in IP mobility...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Analysis of Wimax System by Increasing Capacity Using Various Compression Techniques
Aug 2012
With the tremendous increase in wireless technology and wireless services in the last few decades has put forward the need of an efficient wireless technology that provides high data rates. WiMAX...
Provided by International Journal of Advanced Research in Computer and Communication Engineering (IJARCCE)
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Whitepapers
Estimation and Compensation of Inter Carrier Interference in WIMAX Physical Layer Under Various Channel Models
Sep 2012
WiMAX is wireless Interoperability for microwave access has emerged as a promising solution for transmission of higher data rates for fixed and mobile applications. IEEE 802.16d and e are the...
Provided by JNTU College of Engineering
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Whitepapers
Adaptive Priority-Based Downlink Scheduling for WiMAX Networks
Oct 2012
Supporting Quality of Service (QoS) guarantees for diverse multimedia services are the primary concerns for WiMAX (IEEE 802.16) networks. A scheduling scheme that satisfies QoS requirements has...
Provided by Tamir Khason
-
Whitepapers
FPGA Based Variable - Point FFT Processor
Jul 2011
An efficient variable length FFT processor is required for the downlink module of Orthogonal Frequency Division Multiple Access (OFDMA) system. This system is used in the mobility mode of the IEEE...
Provided by International Journal of Engineering Research and Applications (IJERA)
-
Whitepapers
Review on Efficient Reuse of Bandwidth for Throughput Enhancement in IEEE 802.16 Networks
Dec 2011
IEEE 802.16 is a standard supporting applications demanding bandwidth. Bandwidth reservation and usage depends on the type of the application. Transmission rate varies with respect to transmission...
Provided by International Journal of Engineering Research and Applications (IJERA)
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Whitepapers
Secure Authentication & Key Exchange Technique for IEEE 802.16e by Using Cryptographic Properties
Aug 2011
Many sophisticated authentication and encryption techniques have been embedded into IEEE 802.16 but it still facing a lot of challenging situations. Authentication process is a key to secure...
Provided by International Journal of Engineering Research and Applications (IJERA)
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Whitepapers
Wimax Technology and Its Applications
Jul 2011
This paper presents the features of the Worldwide Interoperability for Microwave Access (WiMAX) technology and future applications of WiMAX. A discussion is given by comparing WIMAX with...
Provided by International Journal of Engineering Research and Applications (IJERA)
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Whitepapers
A Survey on Uplink Bandwidth Request in WiMaX Networks
Aug 2012
The bandwidth allocation in both wired and wireless networks has posed great challenges to network engineers for improving desirable Quality of Service (QoS). Bandwidth allocation is always an...
Provided by International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
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Whitepapers
Performance Analysis of Turbo Coded WiMAX System Over Different Communication Channels
Aug 2012
An ever crowed Radio spectrum system implies that future demands must be met using more data throughput wireless technologies. Since system bandwidth is limited and user demand continues to grow....
Provided by International Journal of Engineering Research and Development (IJERD)
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Whitepapers
Gain Enhancement of Microstrip Patch Antenna Using Hemispherical and Spherical Dielectric Lens Structure for WiMAX Applications
Mar 2012
In this paper a study of the directive gain enhancement obtained using a dielectric lens placed in the near field of radiating elements is discussed. The design and results of a single element...
Provided by International Journal of Emerging Technology and Advanced Engineering (IJETAE)
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Whitepapers
Convergence of Ethernet PON and IEEE 802.16 Broadband Access Networks and Its QoS-Aware Dynamic Bandwidth Allocation Scheme
May 2009
IEEE 802.16 and Ethernet Passive Optical Network (EPON) are two promising broadband access technologies for high-capacity wireless access networks and wired access networks, respectively. They...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
WiMAX Networks: Services & Their Quality Matrics
Jun 2012
WiMAX is the worldwide interoperability for microwave access, to provide business and consumer world wireless broad band services in metropolitan area networks. It has a target range of 31 miles...
Provided by International Journal of Emerging Technology and Advanced Engineering (IJETAE)
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Whitepapers
BER Analysis of Proposed Wimax System in Different Channel Environments
Sep 2012
In the last few years, the telecommunication industries' development has focused on an intensive use of broadband systems, which are characterized by high quality features. For this issue,...
Provided by International Journal of Emerging Technology and Advanced Engineering (IJETAE)
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Whitepapers
EM-Based Receiver Design for Uplink MIMO-OFDMA Systems
Apr 2008
In this paper, the authors propose an iterative receiver for uplink MIMO-OFDMA systems based on the Expectation Maximization (EM) algorithm. Iterating between the E-step and the M-step, the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Minimum BER Transmit Beamforming for MIMO - OFDM Systems With Finite Rate Feedback
Apr 2008
In recent years, it has become apparent that the performance of multi-antenna wireless systems can be significantly improved by exploiting Channel State Information (CSI) at the transmitter. This...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
The Analysis of R/S Estimation Algorithm with Applications to WiMAX Network Traffic
Jul 2012
One of the most popular scale exponent estimation algorithms is the Rescaled Range (R/S) analysis. The algorithm estimates the ratio of a range and standard deviation statistics in a window with...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Block Based Channel Estimation Algorithms for OFDM-IEEE 802.16e (Mobile WiMAX) System
Jan 2011
This paper is to show the improving channel estimation accuracy in OFDM system because channel state information is required for signal detection at receiver and its accuracy affects the overall...
Provided by International Journal of Computer Applications
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Whitepapers
Cross Layer Scheduling Algorithm for IEEE 802.16 Broadband Wireless Networks
Apr 2008
In order to support different types of user applications, the IEEE 802.16 standard defines different service classes together with their associated Quality of Service (QoS) parameters. However,...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Relay Station Placement in IEEE 802.16j Dual-Relay MMR Networks
Apr 2008
Cooperative relaying is one of the most effective techniques in coverage extension and capacity enhancement by virtue of spatial diversity. To fully explore the benefits of adopting Relay Stations...
Provided by Institute of Electrical & Electronic Engineers
-
White Papers
OCSA: An Algorithm for Burst Mapping in IEEE 802.16e Mobile WiMAX Networks1,2
Oct 2009
Most of IEEE 802.16e resource allocation proposals only focus on how to allocate the resources to meet QoS parameters such as throughput, delay, and delay-jitter. As described in the standard, the...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
A Deficit Round Robin With Fragmentation Scheduler for IEEE 802.16e Mobile WiMAX1,2
Apr 2009
Deficit Round Robin (DRR) is a fair packet-based scheduling discipline commonly used in wired networks where link capacities do not change with time. In wireless networks especially wireless...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
SAM: A Simplified Seasonal ARIMA Model for Mobile Video Over Wireless Broadband Networks
Dec 2008
Wireless broadband technologies like WiMAX2 are spreading especially in areas where wired broadband is not expected to reach. Video streaming is continuously acquiring a larger share of Internet's...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Cooperative Multicast Scheduling With Random Network Coding in WiMAX
Apr 2009
The Multicast and Broadcast Service (MBS) in WiMAX has emerged as the next-generation wireless infrastructure to broadcast data or digital video. Multicast scheduling protocols play a critical...
Provided by University of Toronto
-
White Papers
Cooperative Resource Management in Cognitive WiMAX With Femto Cells
Dec 2009
WiMAX with femto cells is a cost-effective next-generation broadband wireless communication system. Cognitive Radio (CR) has recently emerged as a promising technology to improve spectrum...
Provided by University of Toronto
-
White Papers
Investigating the Performance of Various Vocoders for a Fair Scheduling Algorithm in WiMax
Nov 2009
IEEE 802.16e, a broadband wireless access technology that provides high speed internet access and multimedia services has seen very significant growth in recent times. With the due rapid...
Provided by University of Texas
-
White Papers
Security Enhancement & Solution for Authentication Frame Work in IEEE 802.16
Dec 2010
WIMAX- Worldwide Interoperability for Microwave Access is going to be an emerging wireless technology for the future. Wireless networking market is thriving because of increasing popularity of...
Provided by Chittagong University of Engineering & Technology
-
White Papers
WiMAX Based 60 GHz Millimeter-Wave Communication for Intelligent Transport System Applications
Apr 2011
With the successful worldwide deployment of 3rd generation mobile communication, security aspects are ensured partly. Researchers are now looking for 4G mobile for its deployment with high data...
Provided by Sikkim Manipal University
-
White Papers
Selfless Distributed Credit Based Scheduling for Improved QoS in IEEE 802.16 WBA Networks
Nov 2009
Packet and flow scheduling algorithms for WiMAX has been a topic of interest for a long time since the very inception of WiMAX networks. WiMAX offers advantages particularly in terms of Quality of...
Provided by Andhra University
-
White Papers
VOIP Performance Over Broadband Wireless Networks Under Static and Mobile Environments
Nov 2010
Voice over IP is expected to be very promising application in the next generation communication networks. The objective of this paper is to analyse the VoIP performance among the most competing...
Provided by Jadavpur University
-
White Papers
Queueing Analysis of Polled Service Classes in the IEEE 802.16 MAC Protocol
Sep 2009
This paper considers the performance of the polling based service classes of IEEE 802.16 based broadband wireless access networks and develops queueing models to evaluate their delay distributions...
Provided by Rensselaer Polytechnic Institute
-
White Papers
Performance Evaluation of Wimax Physical Layer Under Adaptive Modulation Techniques and Communication Channels
Oct 2009
WIMAX (Worldwide Interoperability for Microwave Access) is a promising technology which can offer high speed voice, video and data service up to the customer end. The aim of this paper is the...
Provided by University of Rajshahi
-
White Papers
A Comprehensive Analysis of Bandwidth Request Mechanisms in IEEE 802.16 Networks
May 2010
The IEEE 802.16 standard is considered to be one of the most promising technologies. Bandwidth reservation is employed to provide Quality of Service (QoS)-guaranteeing services. A request/grant...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Management of Multiple Mobility Protocols and Tools in Dynamically Configurable Networks
Mar 2008
Solutions for mobility management in wireless networks have been investigated and proposed in various research projects and standardization bodies. With the continuing deployment of different...
Provided by University of Surrey
-
White Papers
Comparative Study of Different Guard Time Intervals to Improve the BER Performance of Wimax Systems to Minimize the Effects of ISI and ICI Under Adaptive Modulation Techniques Over SUI-1 and AWGN Communication Channels
Dec 2009
The WIMAX technology based on air interface standard 802-16 wireless MAN is configured in the same way as a traditional cellular network with base stations using point to multipoint architecture...
Provided by University of Rajshahi
-
White Papers
A Coded Cooperative Networking MAC Protocol in Non Transparent Multihop WiMAX Network
May 2010
IEEE 802.16j Mobile Multi-hop Relay (MMR) was proposed to gain coverage extension and throughput enhancement. The objective of this paper, is to suggest a coded cooperative networking MAC protocol...
Provided by University of Sfax
-
White Papers
Performance Evaluation of WiMAX (802.16) Using Different Encoding Schemes
Dec 2009
WiMAX stands for Worldwide Interoperability for Microwave Access. WiMAX is based on wireless Metropolitan Area Network (MAN) standards developed by IEEE 802.16 group. It operates in the licensed...
Provided by COMSATS Institute of Information Technology
-
White Papers
Modified EESM Based Link Adaptation Algorithm for Multimedia Transmission in Multicarrier Systems
Jan 2010
The previous link adaptation algorithms on OFDM based systems use equal modulation order for all sub carrier index within a block. For multimedia transmission using OFDM as the modulation...
Provided by Pondicherry Engineering College
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White Papers
Comparative Study of VoIP Over WiMax and WiFi
May 2011
Recently wireless technology has grown immensely in popularity and usage becoming a medium of choice for networks. The wireless communication revolution is bringing fundamental changes to data...
Provided by University of Karachi
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Case Studies
Packet One Networks Secures Leasing for IT Projects and Business Expansion
Feb 2011
Packet One Networks (Malaysia) Sdn Bhd ("P1") has become Malaysia's largest provider of 4G WiMAX service. To continue growing at such exponential rates, the company needed to improve the agility...
Provided by IBM
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White Papers
Modified Concentric Circular Microstrip Array Configurations for WIMAX Base Stations
Feb 2010
As the increasing demand for higher capacity, better coverage and higher transmission quality rises, array antennas are used in mobile communication systems. For WiMAX application different...
Provided by JATIT
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White Papers
Target Localization Accuracy Using Wimax Radar Networks
May 2011
Scientists have explored that WiMAX has the potential to enhance the performance of the radar networks. With the idea of implementing MIMO (Multi-Input Multi-Output) communication technology for...
Provided by JATIT
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White Papers
Streaming Scalable Video Over WiMAX Networks
Apr 2010
Broadcasting multiple scalable video streams over wireless broadband access networks in real time is a challenging problem, because of the limited channel capacity and variable bit rate of the...
Provided by Simon Fraser University
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White Papers
Comparison Between Turbo Code and Convolutional Product Code (CPC) for Mobile WiMAX
Jun 2009
Mobile WiMAX is a broadband wireless solution that enables convergence of mobile and fixed broadband networks through a common wide area broadband radio access technology and flexible network...
Provided by World Academy of Science, Engineering and Technology
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White Papers
Estimated Traffic Congestion Length by Using Vehicle-to-Vehicle Communication Based on ZigBee
May 2008
The authors propose wireless cellular network that is a sensor network formulation way. In this paper, ZigBee is applied using frequency-division multiplex systems to estimate the distance traffic...
Provided by Shizuoka University
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White Papers
IP-Surveillance System for Unmanned Platforms of Offshore Oil & Gas Field Using WiMAX Technology
May 2008
The Offshore oil and gas fields generally consist of a process complex and group of unmanned platforms attached to it. The hydrocarbons produced at different unmanned platforms will be transported...
Provided by Andhra University
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White Papers
Error Control Strategies for WiMAX Multi-Hop Relay Networks
Dec 2009
Next generation wireless system such as advanced WiMAX (i.e. IEEE802.16m) and LTE advanced will fully embrace multi-hop relay architecture. The conventional Automatic Repeat reQuest (ARQ) and the...
Provided by Mitsubishi Electric Research Laboratories
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White Papers
Fast Handover Between WiMAX and WiFi Networks in Vehicular Environment
Nov 2009
Fast handover is crucial to provide the best services to mobile users in vehicular environment. WiMAX and WiFi support mobility in vehicular speed. However, WiMAX and WiFi network entry processes...
Provided by Mitsubishi Electric Research Laboratories
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White Papers
Energy Efficient Scheduling for Cluster-Tree Wireless Sensor Networks With Timebounded Data Flows: Application to IEEE 802.15.4/ZigBee
May 2010
Cluster scheduling and collision avoidance are crucial issues in large-scale cluster-tree Wireless Sensor Networks (WSNs). The paper presents a methodology that provides a Time Division Cluster...
Provided by CISTER
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White Papers
Simulation Study of Energy Efficient Scheduling for IEEE 802.15.4/ZigBee Cluster-Tree Wireless Sensor Networks With Time-Bounded Data Flows
Nov 2010
The simulation analysis is important approach to developing and evaluating the systems in terms of development time and cost. This paper demonstrates the application of Time Division Cluster...
Provided by CISTER
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White Papers
Measurement and Analysis of BitTorrent Traffic in Mobile WiMAX Networks
Jun 2010
As mobile Internet environments are becoming dominant, how to revamp P2P operations for mobile hosts is gaining more and more attention. In this paper, the authors carry out empirical traffic...
Provided by Seoul National University
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White Papers
Leader-Based Multicast Service in IEEE 802.11v Networks
Feb 2010
With the advent of various multimedia streaming applications requiring reliability and high bandwidth, multicasting in wireless LANs has been gaining more attentions as the supported bit rate...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Measurement and Analysis of World of Warcraft in Mobile WiMAX Networks
May 2009
Online games have been played mainly over wired networks due to high speed links and capable desktop computers. The advances in mobile devices and ever increasing wireless link bandwidth motivate...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Proactive Transmission-Based QoS Provisioning for Multicast and Broadcast Services in Mobile WiMAX Systems
Sep 2009
Mobile WiMAX systems have gained much attention for high transmission rates in cellular environments. One of the promising applications that can leverage high bit rates is Multicast and Broadcast...
Provided by Association for Computing Machinery
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White Papers
Pricing for Heterogeneous Services in OFDMA 802.16 Systems
Nov 2008
The IEEE 802.16 standard is expected to become a successful broadband wireless access solution, especially thanks to its ability to provide high data rates, to differentiate services, and thanks...
Provided by Seoul National University
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White Papers
Regional Token Based Routing for DTNs
Nov 2008
In Delay and Disruption Tolerant Networks (DTNs), there are no stable end-to-end paths because the connectivity of nodes is frequently disrupted by their mobility, power saving or other reasons....
Provided by Seoul National University
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White Papers
Location Management Area (LMA)-Based MBS Handover in Mobile WiMAX Systems
Sep 2007
Mobile WiMAX aims to provide multimedia Multicast/Broadcast Service (MBS) as well as elastic data service. However, supporting delay sensitive applications like video/audio streaming is still...
Provided by Seoul National University
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White Papers
Efficient Data Access Algorithms for ITS-Based Networks With Multi-Hop Wireless Links
Jul 2007
In this paper, the authors investigate efficient data access algorithms in Intelligent Transportation System (ITS)-based networks with multi-hop wireless links. They introduce a Proxy Cache (PC)...
Provided by Institute of Electrical and Electronics Engineers
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Whitepapers
Joint Iterative Parameter Estimation From the Cramer-Rao Lower Bound for an OFDM System
Sep 2008
Orthogonal Frequency Division Multiplexing (OFDM) has become a popular wireless data transmission technique and has been adopted into several standards like IEEE 802.11 (Wi-Fi) and IEEE 802.16...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Robust QoS Control for Single Carrier PMP Mode IEEE 802.16 Systems
Apr 2008
The IEEE 802.16 WirelessMAN standard provides a comprehensive Quality-of-Service (QoS) control structure to enable flow isolation and service differentiation over the common wireless network...
Provided by Institute of Electrical & Electronic Engineers
